updatePlaylist

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full behavioral burden and it falls short. It doesn't state Spotify's ownership/permission requirement for edits, whether omitted fields are left unchanged (partial vs full update), whether the call is idempotent, or what happens on a non-owned playlist.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

One sentence, front-loaded with the action and resource, with the mutable fields bracketed economically. Nothing extraneous, though the parenthetical largely duplicates the schema.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a 5-parameter mutation tool with zero annotation coverage and no output schema, the description omits the operationally critical details: ownership/scope requirements, partial-update semantics, and failure modes. An agent could pick the tool but could not predict its behavior safely.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so every parameter is already documented in the schema (including the 'requires public to be false' constraint on collaborative). The description merely restates the field list, adding no syntax or format detail beyond structured data, making the baseline 3 appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

Clear verb (Update) plus resource (Spotify playlist) with the editable field set enumerated in parentheses. It is distinguishable from createPlaylist and getPlaylist by the 'update the details' framing, though it never explicitly contrasts with those siblings.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No when-to-use guidance is given: nothing says the playlist must already exist, that the user must own it (or be a collaborator), or how this differs from createPlaylist/unfollowPlaylist. The reader must infer usage entirely from the name.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.